?微信小程序request封裝

2022-07-11    分類: 網(wǎng)站建設(shè)

微信小程序request封裝
Request的做小程序是必不可少的,所有后端網(wǎng)絡(luò)請(qǐng)求都要用到request,雖然微信的request相對(duì)來(lái)說(shuō)已經(jīng)很簡(jiǎn)潔,但對(duì)http status code的判斷,處理異常都不是很方便
首先新建一個(gè)request.js

class request {
constructor() {
this._header = {'content-type': 'application/x-www-form-urlencoded'}
}

/**
* 設(shè)置統(tǒng)一的異常處理
*/
setErrorHandler(handler) {
this._errorHandler = handler;
}

/**
* GET類型的網(wǎng)絡(luò)請(qǐng)求
*/
getRequest(url, data, header = this._header) {
return this.requestAll(url, data, header, 'GET')
}

/**
* DELETE類型的網(wǎng)絡(luò)請(qǐng)求
*/
deleteRequest(url, data, header = this._header) {
return this.requestAll(url, data, header, 'DELETE')
}

/**
* PUT類型的網(wǎng)絡(luò)請(qǐng)求
*/
putRequest(url, data, header = this._header) {
return this.requestAll(url, data, header, 'PUT')
}

/**
* POST類型的網(wǎng)絡(luò)請(qǐng)求
*/
postRequest(url, data, header = this._header) {
return this.requestAll(url, data, header, 'POST')
}

/**
* 網(wǎng)絡(luò)請(qǐng)求
*/
requestAll(url, data, header, method) {
return new Promise((resolve, reject) => {
wx.request({
url: url,
data: data,
header: header,
method: method,
success: (res => {
if (res.statusCode === 200) {
//200: 服務(wù)端業(yè)務(wù)處理正常結(jié)束
resolve(res)
//請(qǐng)求返回401 跳轉(zhuǎn)登陸
if(res.data.code=="401"){
wx.reLaunch({
url: '/pages/login/index',
})
}
} else {
//其它錯(cuò)誤,提示用戶錯(cuò)誤信息
if (this._errorHandler != null) {
//如果有統(tǒng)一的異常處理,就先調(diào)用統(tǒng)一異常處理函數(shù)對(duì)異常進(jìn)行處理
this._errorHandler(res)
}
reject(res)
}
}),
fail: (res => {
if (this._errorHandler != null) {
this._errorHandler(res)
}
reject(res)
})
})
})
}
}

export default request

新建getApi.js

import request from './request.js'
import utilMd5 from './md5.js'
class getApi{
constructor() {
this._baseUrl = 'https:xxxx'
this._defaultHeader = {
'data-tupe': 'application/json'
}
this._request = new request
this._request.setErrorHandler(this.errorHander)
this._key = 'cdweb_net'
}

/**
* timestamp
*/
timestamp() {
//獲取當(dāng)前時(shí)間戳
let timestamp = Date.parse(new Date());
timestamp = timestamp / 1000;
//獲取當(dāng)前時(shí)間
let n = timestamp * 1000;
let date = new Date(n);
let Y = date.getFullYear(); //年
let M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1); //月
let D = date.getDate() < 10 ? '0' + date.getDate() : date.getDate(); //日
let h = date.getHours(); //時(shí)
let m = date.getMinutes(); //分
let s = date.getSeconds(); //秒
return Y.toString() + M + D + h + m + s;
}

/**
* 公共參數(shù)
*/
connDate(data) {
let timestamp = this.timestamp();
let conn = {
timestamp: timestamp,
token: utilMd5.hexMD5(timestamp + this._key),
}
return Object.assign(conn, data);
}

/**
* 統(tǒng)一的異常處理方法
*/
errorHander(res) {
console.error(res)
}

/**
* 驗(yàn)證token
*/
getToken(session3rd) {
let url = "User/xxx"
let data = {
device_token: 'wechat',
session3rd: session3rd
}
return this._request.getRequest(this._baseUrl + url, this.connDate(data)).then(res => res.data)
}

/**
* 獲取項(xiàng)目
*/
getProject(session3rd, userID, cpage,k='') {
let url = "Project/xx"
let data = {
session3rd: session3rd,
userID: userID,
cpage: cpage,
k:k
}
return this._request.getRequest(this._baseUrl + url, this.connDate(data)).then(res => res.data)
}

}
export default getApi

最后在app。Js實(shí)例化
Import getApi from ‘./apis/request.js’
getApi:new getApi()

在pages里使用
Const app = getApp();

getdataList() {
app.getApi.getCourseList(this.data.xx)
.then(res => {

this.setData({
list: list
})
})
.catch(res => {
//you code
})
},

本文名稱:?微信小程序request封裝
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